The Universe. Our Solar System. The Sun.

The sun is a big star, located in the center of the solar system. All the planets of the solar system is spinning in orbita. The mean distance from the Sun to the Earth is about 149,600,000 kilometers. The sun was created 4,650 million years ago. As all stars, the sun is spherical. According to scientists the sun is composed of 9 parts:
- The Core.
- Radiant Zone.
- Convective Zone
- Photoesphere
- Cromosphere.
- Corona
- Sunspots
- Granulation
- Solar Wind.